Improvement in strap-cutters



ITD TATES PATENT Error..

IMPROVEMENT IN STRAP-CUTTERS.

Sipecication forming part of Letters'Patent No. 119,578, dated October3,1871 antedated September 27, 1871.

To all whom t may concern.'

Be it known that I, RICHARD GROCKER, of ll/Iarshalltown, in the countyof Marshall and State of Iowa, have invented a new and ImprovedStrap-Cutter; and I do herebyr declare that the following is a full7clear, and exact rdescription of the same, reference being had to theaccompanying drawing forming a part of this specification. y

My invention consists in a new way of cleaning the rotary knives ot astrapcutting apparatus by passing them between the teeth of a comb asthey revolve7 and immediately after the cutting operation has beenperformed.

Figure lis a vertical transverse sectional view, and Fig. 2 a plan viewof my improved machine.

A is the frame; B, a crankshaft 5 and O, a horizontal supporting roller.D is a series of parallel annular blades or cutters; c, the washersseparating them 5 and a, a nut clamping them on the shaft. b is-athumb-screw in which one end of the shaft B is centered. O is a woodensupporting roll having a groove for each blade. d is a table, and e agauge, adjustable laterally thereon. fis a slotted plate, whichconstitutes the comb or cleaners to the knives, and which incidentallyguides them and prevents them from whipping.

lThe mode of operation is as follows The gauge being set to the width ofthe sheet of leather to be out, the leather is placed on table d and fedto the rotary cutters D. The strips, when out, have a tendency to worktight between the knives and to Wind around the shaft. To remove thisdifliculty my comb f then comes into important use, and strips thepieces of leather from the knives as fast as they are out.

Havingthus described all that is necessary to a full understanding` ofmy invention, what I claim as new, and desire to secure by LettersPatent, is-

In a strap-cutting machine7 the comb f, combined with a series of rotaryknives, D, arranged to pass severally through the slots thereof, as andfor the purpose specified.

The above specification of my invention signed by me this 6th day ofSeptember, 1870.

RICHARD GROOKER.

Witnesses:

W. E. SNELLING, F. OROCKER.

